US Bridges

Cathedral Oak RD over Maria Ygnacio Creek

Fair

Santa Barbara County, California · 0.4 MI E Patterson Ave · Structure no. 51C0063

Built
1961
64 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
9,272
2011 count
Owner
County
County Highway Agency

About this bridge

Cathedral Oak RD over Maria Ygnacio Creek is a concrete continuous culvert carrying Cathedral Oak RD over Maria Ygnacio Creek in Santa Barbara County, California. It was built in 1961, so it is 64 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,272 vehicles a day, roughly 3% of them trucks, projected to reach 17,214 by 2043. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCathedral Oak RD
CrossesMaria Ygnacio Creek
Location0.4 MI E Patterson Ave
RouteCounty Highway 0
CountySanta Barbara County
StateCalifornia
Coordinates34.45149, -119.80312
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,272 (2011)
Projected traffic17,214 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cathedral Oak RD over Maria Ygnacio Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Cathedral Oak RD over Maria Ygnacio Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Cathedral Oak RD over Maria Ygnacio Creek carry?

About 9,272 vehicles per day (2011 count), of which roughly 3% are trucks.

How long is Cathedral Oak RD over Maria Ygnacio Creek?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.7 m).

Who owns Cathedral Oak RD over Maria Ygnacio Creek?

It is owned by the County Highway Agency.